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Mathematics 17 Online
OpenStudy (narissa):

please help

OpenStudy (narissa):

OpenStudy (narissa):

@welshfella

OpenStudy (sunnnystrong):

Recall that: Average Rate of Change = \[\frac{ f(a)-f(b) }{ a-b }\]

OpenStudy (narissa):

yes

OpenStudy (sunnnystrong):

If \[f(x)=480(0.3)^x\] What is rate of change on interval [1,5]?

OpenStudy (sunnnystrong):

Find: \[\frac{ f(1)-f(5) }{ 1-5 }\]

OpenStudy (narissa):

4/4

OpenStudy (sunnnystrong):

@narissa ... Sooo... to answer this you have to find f(1) & f(5) \[f(5)=480(0.3)^5\] =1.1664 \[f(1)=480(0.3)^1\] =144

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